I have a whole bunch of 2d plans and elevations of commercial kitchen equipment and I would like to know an easy way of creating basic 3d symbols from them. The symbols do not need to show all the detail the 2ds do, just a solid containing the overall all envelope. If I produce a 2d outline border of each plan and elevation then extrude them, is there an easy way to "add" the extrusions together to form a 3d object.   Solids modelling is not my strong point so if anyone has any great t